#37A6CC#37A6CC

#37A6CC is a light, moderate cyan. Relative luminance 0.324; OKLCH L 67.9% C 0.112 H 225.3°. Best body text is #000000 at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#37A6CC
RGB	rgb(55, 166, 204)
HSL	hsl(195, 59%, 51%)
HSV	hsv(195, 73%, 80%)
CMYK	cmyk(73%, 18.6%, 0%, 20%)
CIE-LAB	lab(63.71, -18.54, -28.35)
CIE-LCH	lch(63.71, 33.87, 236.81°)
OKLab	oklab(67.94% -0.0787 -0.0794)
OKLCH	oklch(67.94% 0.112 225.3)
XYZ	xyz(26.1064, 32.4412, 62.0009)
Luminance	0.3244 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A6CC #CC5D37

analogous

#37CCA7 #37A6CC #375BCC

triadic

#37A6CC #CC37A6 #A6CC37

tetradic

#37A6CC #A737CC #CC5D37 #5BCC37

square

#37A6CC #A737CC #CC5D37 #5BCC37

split-complementary

#37A6CC #CC375B #CCA737

monochromatic

#1C586D #28809E #37A6CC #68BCD8 #99D1E5

Accessibility & contrast

On white

2.80

#37A6CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.49

#37A6CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A6CC

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A6CC	#FFFFFF	#000000	##000000
##37A6CC	1.00	2.80	7.49	7.49
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.49	21.00	1.00	1.00
##000000	7.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A3CE

Deuteranopia (green-blind)

#7D94CC

Tritanopia (blue-blind)

#00B1B2

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #37a6cc;
/* rgb */ color: rgb(55, 166, 204);
/* oklch */ color: oklch(67.9% 0.112 225.3);

Tailwind

colors: {
  custom: {
    50: '#82c0db',
    500: '#37a6cc',
    950: '#000000',
  },
}

SCSS

$custom: #37a6cc;
$custom-light: #82c0db;
$custom-dark: #000000;

JSON

{
  "hex": "#37a6cc",
  "rgb": {
    "r": 55,
    "g": 166,
    "b": 204
  },
  "hsl": {
    "h": 195.302,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.67941,
    "c": 0.11182,
    "h": 225.3
  },
  "luminance": 0.32444
}

Semantic roles & 50–950 ramp

primary

#37A6CC

secondary

#D09F8E

accent

#6D45E3

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A6CC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →